package com.example.testing.myphonestatelistener;


         import android.app.Service;
         import android.content.Intent;
        import android.os.IBinder;
        import android.support.annotation.Nullable;

        /**
  * Created by liuhunan on 2017/6/19.
   */
         public class PhoneStateService extends Service {      @Nullable      @Override
             public IBinder onBind(Intent intent) {
                return null;
             }
 }
